Index.



PATENTED APR. 26, 1904.

11. M. RUDASILL. INDEX.

APPLICATION rum) MIG, 24, 1903.

N0 MODEL.

, guncutmc flerberM-mauu' 3g 'rgutmmcg UNITED STATES Patented April 26, 1904.

PATENT OFFICE.

INDEX.

SPECIFICATION forming part of Letters Patent No. 758,477, dated April 26, 1904.

Application filed August 24, 1903.

. improved index for books, especially adapted to large'heavy volumes, whereby the desired indexed page may be reached by one movement of the leaves without turning the book over or lifting it bodily. I

The invention will be hereinafter fully setforth, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a View in perspective. Fig. 2 is an end view. Fig. 3 is a similar view of a slight modification.

Referring to the drawings, 1 designates a bound volume for use as a ledger, court-record, &c. The sides 2 3 are slightly wider than the leaves, and the former is provided on its inner face adjacent its longitudinal free edge with letters arranged in alphabetical succession. These are shown as stamped upon a strip 4, secured to the cover, although they may be impressed in the cover itself.

In the form of embodiment shown in Figs. 1 and 2 the cover 2 is formed with a reduced portion 5 along its side edge, a space beingleft between the index thereon and the inner wall of such reduced portion.

The leaves 6 are provided on their free edges with a suitable arrangement of marginal index. This is formed by a letter or letters on the outer edge of each of theleaves, the balance of the edge of the leaf being cut away or removed to provide a space in which are displayed the letters on the next succeeding leaves. When a series or section of leaves is allotted to the matter or names which one or more of the letters represent, all the leaves of such series are uniformly cut, the index being Serial No. 170,630. (No model.)

displayed on the lower leaf of such series or section. This marginal index is formed by letters arranged alphabetically and in the direction of succession corresponding to that of the index on the cover 2, each ofthe characters, figures, or symbols of the leafindex' as, for instance, subdivisions of names beyond their first lettersbeing similar to the corresponding designation on the index of the cover. When the volume is closed, the index of the leaves is disposed toward the index of the cover,and the leaves properthat is, independent of the indexed widened portions thereof extend to the inner wall of the reduced portion 5, and such indexed portions extend over the space between said Wall and the index 4, thus leaving the latter always exposed to view.

In practice, the volume being in the position shown in Fig. 2, the indexes on the leaves and cover, respectively, are facing in opposite di-' rectionsthat is, toward each otherthe index of the cover being fully exposed to view. The user may readily reach any indexed leaf in the volume by inserting his finger beneath the leaves at a point adjacent the corresponding letter on the index 4 and turning back all the leaves projecting at that point. The movement of the leaves by inserting the finger is facilitated by the fact that the reduced portion with which the cover is formed is lower than the lowermost indexed leaf.

In Fig. 3 I have showna slight modification in the construction of the cover 2, consisting in substituting for the reduced portion thereof a strip 7, having its upper surface inclined or beveled toward the binding of the volume and its wide edge 8 positioned relatively to the index 4, as described, with reference to the wall of the reduced portion. This construction is adapted to volumes having thin covers or where the material will not readily permit of its thickness being reduced.

It is obvious that the form of volume illustrated doesnot require an index on the cover 3, since if the volume be resting on that cover the marginal index of the leaves will be sufficient. When, however, the volume is divided with reference to the subject-matter of its contents, the described indexes on the leaves and cover 2 may be duplicated on the other division of the leaves and the cover 3.

I claim as my invention 1. A book or bound volume .having sections of its leaves out or removed along their edges, the extent of the cut or removal of the several sections being graduated, each section having an index applied directly thereto within the width thereof, a cover for the book or volume having its outer edges projected beyond those of the several sections, an index afiixed to one of such projected edges corresponding to the index of the several sections but facing in the opposite direction thereto, and means for forming a space between the index of the cover and that of the sections.

2. A book or bound volume having sections of its leaves out or removed along their edges, the extent of the cut or removal of the several sections being graduated, each section having an index applied directly thereto within the width thereof, a cover for the book or volume having its outer edges projected beyond those of the several sections, and an index afiixed to one of such projected edges corresponding to the index of the several sections but facing in the opposite direction thereto, such cover being constructed to provide a vertical space 7 ume having its outer edges projected beyond those of the several sections, one of such edges having its projected portion reduced in thickness and provided with an index corresponding to the index of the several sections but facing in the opposite direction thereto, a space being between such index and the inner wall of the reduced portion, for the purpose set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

HERBERT M. RUDASILL.

Witnesses:

JOHN T. SHUMATE, A. L. BEARDSLEY. 

